Arcon-Sunmark is a merger between two of the world’s leading companies within large-scale solar heating – ARCON Solar and Sunmark. ARCON Solar was established in 1974 in Skørping, Denmark and was a pioneer in the large-scale solar thermal industry, with a special focus on solutions for district heating. ARCON Solar has installed the largest large-scale solar thermal systems in Europe. Based on more than 25 years of experience and know-how, Sunmark was established in 2008 on the isle of Ærø, Denmark. Sunmark established highly specialized production facilities both in Denmark and in Asia, and installed the world’s largest solar plant for the mining industry - in Chile. In 2015 the two companies joined forces to establish the world’s leading company in this line of business.